I don’t see any chance DeSantis is going to be Trump’s VP running mate. It will be somebody like Kari Lake who isn’t a bad choice at all.
Seems less likely today than it did 6 months ago, that’s for sure.
But it was probably more wish fulfillment than anything real. The only person (Robert Barnes) that I know of who has direct access to both the Trump and DeSantis camps who was spreading the rumor has backed off recently.